A Sustainable Cold Mix Asphalt Mixture Comprising Paper Sludge Ash and Cement Kiln Dust

Concerns about the environment, cost of energy, and safety mean that low-energy cold-mix asphalt materials are very interesting as a potential replacement for present-day hot mix asphalt. The main disadvantage cold bituminous emulsion mixtures is their poor early life strength, meaning they require long time to achieve mature strength. This research work aims study protentional utilization waste by-product filler in with mechanical properties comparable those traditional Accordingly, was prepared utilize paper sludge ash (PSA) cement kiln dust (CKD) substitution conventional mineral percentages ranging from 0–6% 0–4%, respectively. Test results have shown incorporation such reflected significant improvement mixture’s stiffness strength evolution. cementitious reactivity PSA produces bonding inside mixtures, while CKD used an additive activate hydration process PSA. Therefore, based on results, it will be easier build by shortening amount needed reach full curing conditions.